Oil-level tester for crank cases



Feb. 12 ,1924. 1,483,517

A. L. NASH ET AL.

OIL LEVEL TESTER FOR CRANK CASES Filed May 25. 1923 vwentoz MOCM MKM Elite-laws Patented rah. 2, 1 224:.

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OIL-LEVEL 'rnsrna Application file-:1 may 25,

To all whom it may concern:

Be it known that we, ARCHIE L. NASH and VILLIAM P. NASH, citizens of the United Satates of America, and residents of East Spencer, county of Rowan, and State of North Carolina, have invented certain new and useful Improvements in Oil-Level Testers for Crank Cases, of which the following is a full and clear specification.

As is well known, the Ford crank-case is provided with two oil-level testing petcocks, one above the other, for the purpose of testing the oil-level in the crank-case. These petcocks in the present construction are located in a position where it is very inconvenient to open them for testing purposes. It is the object of our invention to provide a simple accessory tool for permanent attachment to the vehicle, whereby these cocks may be readily opened from a position at one side of the car, thereby rendering it unnecessary for the person making the test to get under the car.

In the drawing Fig. 1 is a perspective view of a Ford crank-case showing our invention applied thereto;

Figs. 2, 3, 4 and 5 are views of details hereinafter described.

Referring to the drawing annexed by reference-characters, 10 designates the upper petcock and 11 the lower petcock. Engaging the plug finger-piece of the petcock 10 is a wrench 12, and engaging the finger-piece of the other petcoclr is a wrench 13, these wrenches being in the form of rods extending obliquely upwardly and outwardly and having their upper, outer, ends journaled in a frame 14 depending from the crank-case. This frame consists of a'pair of metal plates bolted together and having the upper end of the outer plate extended to form an arm 15 which is adapted to lie upon the flange of the crank-case and be clamped thereon by the usual bolt employed at the corner of the crank-case to clamp the flanges thereof together.

Aflixed to the wrench 12 within the frame is a gear 16, and affixed to the other wrench is a gear 17, the latter gear being larger than the gear 16 and being in constant mesh therewith. In constant mesh with the top gear 16 is a larger gear 18 which is adapted to be rotated by a rod 19 which extends upwardly and outwardly through a hole in the res CRANK cnsns.

1923. Serial No. 641,451,

foot-board shield 20 and is provided with a crank-arm 21 at its outer end.

The driving-gear 18 is adapted to turn with the shaft 19 so that, by rotating said shaft 19, the two wrench-gears 16 and 17 will be oppositely rotated, thereby rotating the plugs of the petcocks to open position. By making the intermediate gear 16 smaller than the gear 17, it will be observed that the upper cock 10 will be opened first, thereby enabling the operator to test the cocks seriatim, the top one first, so that, if oil appears when the top one is opened, no further testing is necessary. Driving gear 18, as stated, rotates with the shaft 19, but it has a sliding action thereon, one side of the shaft being slabbed off, and the eye in the gear being shaped to fit this flat part of the shaft. On the slabbed part of the shaft 19, between the ba cl: member of the frame and a nut or collar 22 on the extreme inner end of the shaft, is arranged a coil-spring which tends to expand and thus normally pulls the shaft 19 inwardly. The object of this is not only to prevent rattling of the drive-shaft 19, but also to hold its cra11k-arm 21 in against the foot-board shield 20, where it will be out of the way. To operate the shaft 19 it is, therefore, desirable to pull it outwardly a short distance against the action of its spring 23, to thereby enable it to be conveniently rotated.

What we claim is:

1. In a device of the class set forth, a frame and means for supporting the same, a pair of wrenches supported in said frame and provided with meshing gears, a driving-gear in the frame, and an operating-shaft for the driving-gear extending to one side of the vehicle.

2. In a device of the class set forth, a frame and means for supporting the same, a pair of wrenches supported in said frame and provided with meshing gears, a driving-gear in the frame, and an operating-shaft for the driving-gear extending to one side of the vel'iicle, the wrenches being arranged one above the other and the gear on the top wrench being smaller in diameter than the gear on the lower Wrench.

3. In a device of the class set forth, a frame and means for supporting the same, a pair of wrenches supported in said frame and provided with meshing gears, a drivinggear in the frame, and an operating-shaft for the driving-gear extending to one side of the Vehicle, said driving'shaft having sliding connection to the driving-gear, a spring being provided to normally pull the drivingshaft inwardly.

4. In a device of the class set forth, a frame, means for supporting the same, a pair of Wrenches supported in said frame and provided with meshing gears embodying a driving gear, and an operating shaft for the drivlng gear extending to one side of the vehicle and adapted to he slid inwardly to a position out of the way and to be drawn outwardly to operative position. 

